Domain Overview
DNS: ✓ 15h ago
Checker: ✓ 15h ago
isa-arbor.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-07-02 03:00:08 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 104.21.17.52 (no PTR)
- 172.67.222.82 (no PTR)
- 2606:4700:3034::ac43:de52 (no PTR)
- 2606:4700:3030::6815:1134 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
isaac.ns.cloudflare.com dns.cloudflare.com 2406173165 10000 2400 604800 1800
Primary NS (mname)
isaac.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2406173165
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lola.ns.cloudflare.com
isaac.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:app.aventri.com include:spf.protection.outlook.com include:_spf.bigcommerce.com include:servers.mcsv.net include:latitudecg.com include:sendgrid.net ip4:40.114.53.120 ip4:64.9.204.252 ip4:173.194.204.26 ip4:64.233.186.26 ip4:209.85.202.26 ip4:54.253.117.90 ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- MS=AB8E49B7B8242AE7A757C3A226F2F4B6E2B65786
- facebook-domain-verification=bgpxgj5e046izmvib04w40yu8pwxau
- google-gws-recovery-domain-verification=51633654
- google-site-verification=yOSjP7OCqrUBy7qb3amUALxzYzc6uWrfjjRHgVR8m-Q
- SPFv=spf1 include:us._netblocks.mimecast.com include:app.aventri.com include:spf.protection.outlook.com include:_spf.bigcommerce.com include:servers.mcsv.net include:latitudecg.com include:sendgrid.net ip4:40.114.53.120 ip4:64.9.204.252 ip4:173.194.204.26 ip4:64.233.186.26 ip4:209.85.202.26 ip4:54.253.117.90 ~all
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